/* Modern Premium UI Tokens & Utilities */
:root {
  --premium-shadow:
    0 10px 30px -5px rgba(0, 0, 0, 0.04), 0 6px 10px -5px rgba(0, 0, 0, 0.02);
  --premium-shadow-hover:
    0 20px 40px -5px rgba(0, 0, 0, 0.08), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  --premium-radius: 16px;
  --premium-gradient: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-100) 100%
  );
  --btn-shadow: 0 4px 15px rgba(128, 66, 245, 0.2);
  --btn-shadow-hover: 0 8px 25px rgba(128, 66, 245, 0.3);
  --premium-orange: linear-gradient(to right, #ff7e5f, #feb47b);
  --premium-orange-shadow: rgba(255, 126, 95, 0.3);
  --blueprint-color: #dee2e6;
}

[data-bs-theme="dark"] {
  --glass-bg: rgba(15, 23, 42, 0.8);
  --glass-border: rgba(255, 255, 255, 0.1);
  --premium-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.7);
  --premium-gradient: linear-gradient(135deg, #f97316 0%, #f97316 100%);
  --color-primary-rgba-30: rgba(249, 115, 22, 0.4);
  --color-primary-rgba-20: rgba(249, 115, 22, 0.25);
  --btn-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  --btn-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.5);
  --blueprint-color: rgba(255, 255, 255, 0.05);
}

/* Base Enhancements */
body {
  background-color: var(--bg-bgsecondary);
  font-family: "Inter", "Nunito", sans-serif;
}

/* Modern Card Design */
.premium-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--premium-radius);
  box-shadow: var(--premium-shadow);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}

.premium-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--premium-shadow-hover);
  border-color: var(--color-primary-rgba-30);
}

[data-bs-theme="dark"] .premium-card {
  background: var(--bs-tertiary-bg) !important;
  border-color: rgba(255, 255, 255, 0.05) !important;
}

[data-bs-theme="dark"] .premium-card .text-secondary {
  color: var(--bs-gray-400) !important;
}


.glass-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border) !important;
}

/* Metric Cards Specific */
.metric-card-gradient {
  position: relative;
  background: var(--white);
}

.metric-card-gradient::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: var(--premium-gradient);
  opacity: 0.05;
  border-radius: 0 0 0 100%;
  transition: all 0.3s ease;
}

.metric-card-gradient:hover::after {
  width: 100px;
  height: 100px;
  opacity: 0.1;
}

/* Table Enhancements */
.premium-table-container {
  background: var(--white);
  border-radius: var(--premium-radius);
  /* overflow:visible allows dropdown menus inside the table to escape the container */
  overflow: visible;
  box-shadow: var(--premium-shadow);
  border: 1px solid var(--border);
  position: relative;
}

/* Clip only horizontal overflow on the inner scroll wrapper so it respects
   the container's border-radius, but leave vertical overflow visible so
   Bootstrap dropdowns can extend below the table without being clipped. */
.premium-table-container .table-responsive {
  overflow-x: auto;
  overflow-y: visible;
  border-radius: 0 0 var(--premium-radius) var(--premium-radius);
}

.premium-table thead th {
  background-color: var(--secondary);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 20px;
  border: none;
}

.premium-table tbody td {
  padding: 6px 20px;
  vertical-align: middle;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}

.premium-table tbody tr:last-child td {
  border-bottom: none;
}

.premium-table tbody tr:hover td {
  background-color: var(--color-primary-rgba-20) !important;
}

/* Button Refinement */
.btn-premium {
  background: var(--premium-gradient);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 10px 20px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--btn-shadow);
}

.btn-premium:hover {
  transform: translateY(-2px);
  box-shadow: var(--btn-shadow-hover);
  color: white;
}

.btn-premium-orange {
  background: var(--premium-orange) !important;
  color: white !important;
  border: none !important;
  border-radius: 50px !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 15px var(--premium-orange-shadow) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.btn-premium-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--premium-orange-shadow) !important;
  filter: brightness(1.1);
}

.btn-premium-orange:active {
  transform: translateY(0);
}

/* Dashboard Utilities */
.blueprint-bg {
  background-image: radial-gradient(var(--blueprint-color) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: 16px;
}

.hover-elevate {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-elevate:hover {
  transform: translateY(-5px);
  box-shadow: var(--premium-shadow-hover) !important;
}

.icon-box-circle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.icon-box-square {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.task-accent-orange { border-top: 4px solid #f59e0b !important; }
.task-accent-blue { border-top: 4px solid #00c6ff !important; }
.task-accent-red { border-top: 4px solid #ef4444 !important; }

[data-bs-theme="dark"] .premium-card {
  background: var(--bs-tertiary-bg) !important;
  border-color: rgba(255, 255, 255, 0.05) !important;
}

[data-bs-theme="dark"] .text-dark {
  color: var(--bs-gray-300) !important;
}

[data-bs-theme="dark"] .quick-action-card h6 {
  color: var(--bs-gray-200) !important;
}

.text-premium-dark { color: #334155; }
[data-bs-theme="dark"] .text-premium-dark { color: var(--bs-gray-300) !important; }

.stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 1.8rem;
  line-height: 1;
}

.fs-10 { font-size: 10px !important; }
.fs-11 { font-size: 11px !important; }
.fs-12 { font-size: 12px !important; }
.fs-13 { font-size: 13px !important; }
.fs-14 { font-size: 14px !important; }

/* Stat Icon Container */
.stat-icon-box {
  width: 48px;
  height: 48px;
  aspect-ratio: 1;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.premium-card:hover .stat-icon-box {
  transform: scale(1.1) rotate(5deg);
}

/* Welcome Section */
.welcome-hero {
  background: var(--premium-gradient);
  border-radius: var(--premium-radius);
  padding: 40px;
  color: white;
  position: relative;
  overflow: hidden;
}

.welcome-hero::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.welcome-hero h2 {
  color: white !important;
  position: relative;
  z-index: 1;
}

.welcome-hero p {
  color: rgba(255, 255, 255, 0.8) !important;
  position: relative;
  z-index: 1;
}

.dtr-preview-container {
  background: var(--bg-body-secondary);
  padding: 40px 20px;
  border-radius: 12px;
  min-height: 500px;
  display: flex;
  justify-content: center;
}
.dtr-paper {
  background: white;
  width: 100%;
  max-width: 850px;
  min-height: 362mm; /* Standard A4 Height */
  padding: 15mm;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid #ddd;
  position: relative;
  font-family: "Inter", sans-serif;
  color: #333;
  margin: 0 auto 30px auto;
  word-wrap: break-word;
  page-break-after: always;
  break-after: page;
}
.dtr-header {
  text-align: center;
  margin-bottom: 20px;
  border-bottom: 2px solid #333;
  padding-bottom: 15px;
  break-inside: avoid;
}
.dtr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
}
.dtr-table th,
.dtr-table td {
  border: 1px solid #333;
  padding: 4px 2px;
  text-align: center;
}
.dtr-table tr {
  break-inside: avoid;
  page-break-inside: avoid;
}
.dtr-table th {
  background: #f8f9fa !important;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 9px;
}
.dtr-footer {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  break-inside: avoid;
  page-break-inside: avoid;
}
.signature-line {
  border-top: 1px solid #333;
  width: 180px;
  text-align: center;
  margin-top: 40px;
  padding-top: 5px;
  font-weight: bold;
  font-size: 11px;
}
@media print {
  @page {
    size: A4;
    margin: 0;
  }
  body * {
    visibility: hidden;
  }
  #modalPrintDTR .modal-content,
  #modalPrintDTR .modal-body,
  #modalPrintDTR .preview-col {
    visibility: visible;
    overflow: visible !important;
    height: auto !important;
    background: transparent !important;
  }
  #modalPrintDTR .dtr-paper {
    visibility: visible;
    position: relative;
    box-shadow: none;
    border: none;
    width: 100%;
    height: auto;
    margin: 0;
    padding: 20mm;
  }
  .btn-print-actions,
  .col-md-3.border-end {
    display: none !important;
  }
  .modal-header {
    display: none !important;
  }
  .preview-col {
    width: 100% !important;
    padding: 0 !important;
  }
}

[data-bs-theme="dark"] .select2-results__option--highlighted[aria-selected] {
  background-color: var(--color-primary) !important;
  color: white !important;
}

/* Skeleton Loader Styles */
.skeleton-item {
  background: linear-gradient(90deg, #f1f2f4 25%, #f9fafb 50%, #f1f2f4 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 2s infinite linear;
  border-radius: 8px;
  display: block;
  min-height: 10px;
}

[data-bs-theme="dark"] .skeleton-item {
  background: #2a2d31;
  background: linear-gradient(90deg, #2a2d31 25%, #f9741648 50%, #2a2d31 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 2s infinite linear;
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.skeleton-text {
  height: 12px;
  margin: 8px 0;
  width: 100%;
}
.skeleton-title {
  height: 20px;
  margin-bottom: 12px;
  width: 60%;
}
.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
}
.skeleton-span {
  width: 100px;
  height: 8px;
  flex-shrink: 0;
}
.skeleton-table-cell {
  height: 16px;
  margin: 4px 0;
}
.skeleton-rect {
  height: 100%;
  min-height: 200px;
  width: 100%;
}
.skeleton-inline {
  display: inline-block !important;
  vertical-align: middle;
}

/* SweetAlert2 & Toast Premium Styling */
.swal2-popup {
  border-radius: var(--premium-radius) !important;
  padding: 2rem !important;
  background: var(--white) !important;
  box-shadow: var(--premium-shadow) !important;
  border: 1px solid var(--border) !important;
  font-family: "Inter", "Nunito", sans-serif !important;
}

.swal2-title {
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  color: var(--color-primary) !important;
  margin-bottom: 0.5rem !important;
}

.swal2-html-container {
  color: var(--text-secondary) !important;
  font-size: 1rem !important;
  line-height: 1.6 !important;
}

.swal2-confirm {
  background: var(--premium-gradient) !important;
  border-radius: 12px !important;
  padding: 12px 32px !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  box-shadow: var(--btn-shadow) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border: none !important;
}

.swal2-confirm:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--btn-shadow-hover) !important;
  filter: brightness(1.1);
}

.swal2-confirm:active {
  transform: translateY(0) !important;
}

.swal2-cancel {
  border-radius: 12px !important;
  padding: 12px 32px !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  background: var(--secondary) !important;
  color: var(--text-primary) !important;
  transition: all 0.3s ease !important;
}

.swal2-cancel:hover {
  background: var(--border) !important;
}

.swal2-actions {
  gap: 12px;
  margin-top: 1.5rem !important;
}

/* Toast Specific Styling */
.swal2-toast {
  padding: 1rem 1.5rem !important;
  border-radius: var(--premium-radius) !important;
  box-shadow: var(--premium-shadow-hover) !important;
  background: var(--white) !important;
  border: 1px solid var(--border) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.swal2-toast .swal2-title {
  font-size: 0.95rem !important;
  font-weight: 600 !important;
  margin: 0 0 0 12px !important;
  color: var(--text-primary) !important;
}

.swal2-toast .swal2-icon {
  margin: 0 !important;
  scale: 0.8;
}

/* Icon Refinement */
.swal2-icon {
  border-width: 2px !important;
  margin: 1.25rem auto 1.5rem !important;
}

.swal2-icon.swal2-success {
  border-color: var(--green) !important;
  color: var(--green) !important;
}

.swal2-icon.swal2-success [class^="swal2-success-line"] {
  background-color: var(--green) !important;
}

.swal2-icon.swal2-success .swal2-success-ring {
  border-color: rgba(16, 185, 129, 0.2) !important;
}

.swal2-icon.swal2-error {
  border-color: var(--red) !important;
  color: var(--red) !important;
}

.swal2-icon.swal2-error [class^="swal2-x-mark-line"] {
  background-color: var(--red) !important;
}

.swal2-icon.swal2-warning {
  border-color: var(--orange) !important;
  color: var(--orange) !important;
}

.swal2-icon.swal2-info {
  border-color: var(--blue) !important;
  color: var(--blue) !important;
}

/* Generic Premium Toast (if used elsewhere) */
.premium-toast {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: var(--premium-shadow-hover);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Dark Mode specific adjustments for Swal */
[data-bs-theme="dark"] .swal2-popup,
[data-bs-theme="dark"] .swal2-toast {
  background: var(--white) !important;
  border-color: var(--border) !important;
}

[data-bs-theme="dark"] .swal2-title,
[data-bs-theme="dark"] .swal2-html-container {
  color: var(--text-primary) !important;
}

[data-bs-theme="dark"] .swal2-cancel {
  background: var(--secondary) !important;
  color: var(--text-primary) !important;
}

[data-bs-theme="dark"] .swal2-success-fix,
[data-bs-theme="dark"] .swal2-success-circular-line-left,
[data-bs-theme="dark"] .swal2-success-circular-line-right {
  background-color: transparent !important;
}

div:where(.swal2-container) div:where(.swal2-loader) {
  border-color: #f97e24 rgba(0, 0, 0, 0) #fa7c21 rgba(0, 0, 0, 0) !important;
}

/* Premium Notification Dropdown */
.header-dropdown-menu {
  border-radius: 14px !important;
  border: 1px solid var(--border) !important;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1) !important;
  padding: 0 !important;
  overflow: hidden;
  min-width: 340px !important;
  background: var(--white) !important;
}

.header-dropdown-header {
  background: var(--secondary);
  padding: 16px 20px !important;
  border-bottom: 1px solid var(--border) !important;
  margin-bottom: 0 !important;
}

.header-dropdown-header h4 {
  font-weight: 700 !important;
  color: var(--text-primary) !important;
  font-size: 14px !important;
  margin: 0 !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

.notification-dropdown-item {
  padding: 16px 20px !important;
  border-bottom: 1px solid var(--border) !important;
  transition: all 0.2s ease !important;
  display: block !important;
  text-decoration: none !important;
  background: var(--white);
}

.notification-dropdown-item:last-child {
  border-bottom: none !important;
}

.notification-dropdown-item:hover {
  background-color: var(--color-primary-rgba-20) !important;
}

.notification-content {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.notification-icon {
  width: 38px !important;
  height: 38px !important;
  border-radius: 10px !important;
  background: var(--secondary) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary) !important;
}

.notification-icon .az-icon {
  font-size: 20px !important;
}

.notification-text {
  flex: 1;
}

.notification-title {
  font-weight: 600 !important;
  font-size: 13.5px !important;
  color: var(--text-primary) !important;
  margin-bottom: 3px !important;
}

.notification-desc {
  font-size: 11.5px !important;
  color: var(--text-secondary) !important;
  line-height: 1.5 !important;
  margin-bottom: 6px !important;
}

.notification-time {
  font-size: 10px !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700 !important;
  color: var(--text-secondary) !important;
  opacity: 0.6;
}

.notification-footer {
  padding: 12px !important;
  background: var(--secondary);
  text-align: center;
  border-top: 1px solid var(--border) !important;
}

.notification-footer a {
  font-size: 12.5px !important;
  font-weight: 700 !important;
  color: var(--color-primary) !important;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.notification-footer a:hover {
  letter-spacing: 0.2px;
}

/* Dark mode overrides for notifications */
[data-bs-theme="dark"] .header-dropdown-menu,
[data-bs-theme="dark"] .notification-dropdown-item {
  background: var(--white) !important;
}

[data-bs-theme="dark"] .header-dropdown-header,
[data-bs-theme="dark"] .notification-footer {
  background: var(--secondary) !important;
}

[data-bs-theme="dark"] .notification-icon {
  background: var(--bs-tertiary-bg) !important;
}

/* User Profile & Avatar Refinements */
.user-avatar.large {
  width: 38px !important;
  height: 38px !important;
  padding: 2px;
  background: var(--premium-gradient);
}

.user-avatar.rounded-circle img {
  border-radius: 50%;
  object-fit: cover;
  background: var(--white);
}

.icon-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  transition: all 0.2s ease;
  background: var(--secondary);
  border: 1px solid transparent;
}

.icon-btn:hover {
  background: var(--white);
  border-color: var(--color-primary-rgba-20);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.icon-btn .az-icon {
  font-size: 20px;
}

/* Pagination Styling (DataTables & Standard Bootstrap) */
.pagination {
  gap: 0.5rem;
}

.page-item .page-link,
.dataTables_wrapper .dataTables_paginate .paginate_button {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50% !important;
  border: 0 !important;
  color: var(--text-secondary) !important;
  background: transparent !important;
  transition: all 0.3s ease;
  padding: 0;
  margin: 0 4px;
  font-size: 14px;
}

/* Material Icons vertically centered inside pagination */
.page-item .page-link .material-icons,
.dataTables_wrapper .dataTables_paginate .paginate_button .material-icons {
  font-size: 18px;
  line-height: 1;
}

/* Hover State */
.page-item:not(.active):not(.disabled) .page-link:hover,
.dataTables_wrapper
  .dataTables_paginate
  .paginate_button:not(.current):not(.disabled):hover {
  background: var(--bg-body-secondary) !important;
  color: var(--color-primary) !important;
  box-shadow: none !important;
}

/* Active State */
.page-item.active .page-link,
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--premium-gradient) !important;
  color: white !important;
  box-shadow: var(--btn-shadow) !important;
}

/* Disabled State */
.page-item.disabled .page-link,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled {
  opacity: 0.5;
  background: transparent !important;
  cursor: not-allowed;
  color: var(--text-secondary) !important;
}

.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background: var(--secondary);
  color: var(--text-primary);
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  background: var(--bg-body-secondary);
}

.semester-tab {
  color: var(--text-secondary);
  transition: all 0.3s ease;
  background: transparent;
}
.semester-tab.active {
  background: var(--premium-gradient) !important;
  color: white !important;
  box-shadow: var(--btn-shadow);
}
.semester-tab:hover:not(.active) {
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}